﻿/*!
 * lhgcore Dialog Plugin v4.2.0
 * Date: 2012-04-19 10:55:11 
 * http://code.google.com/p/lhgdialog/
 * Copyright 2009-2012 LiHuiGang
 */

;
(function ($, window, undefined) {

    var _ie6 = window.ActiveXObject && !window.XMLHttpRequest,
        _fn = function () {
        },
        _count = 0,
        _rurl = /^url:/,
        _singleton,
        onKeyDown,
        document = window.document,
        expando = 'JDG' + (+new Date),

        dialogTpl =
            '<table class="ui_border">' +
            '<tbody>' +
            '<tr>' +
            '<td class="ui_lt"></td>' +
            '<td class="ui_t"></td>' +
            '<td class="ui_rt"></td>' +
            '</tr>' +
            '<tr>' +
            '<td class="ui_l"></td>' +
            '<td class="ui_c">' +
            '<div class="ui_inner">' +
            '<table class="ui_dialog">' +
            '<tbody>' +
            '<tr>' +
            '<td colspan="2">' +
            '<div class="ui_title_bar">' +
            '<div class="ui_title" unselectable="on"></div>' +
            '<div class="ui_title_buttons">' +
            '<a class="ui_min" href="javascript:void(0);" title="\u6700\u5C0F\u5316"><b class="ui_min_b"></b></a>' +
            '<a class="ui_max" href="javascript:void(0);" title="\u6700\u5927\u5316"><b class="ui_max_b"></b></a>' +
            '<a class="ui_res" href="javascript:void(0);" title="\u8FD8\u539F"><b class="ui_res_b"></b><b class="ui_res_t"></b></a>' +
            '<a class="ui_close" href="javascript:void(0);" title="\u5173\u95ED(esc\u952E)">\xd7</a>' +
            '</div>' +
            '</div>' +
            '</td>' +
            '</tr>' +
            '<tr>' +
            '<td class="ui_icon"></td>' +
            '<td class="ui_main">' +
            '<div class="ui_content"></div>' +
            '</td>' +
            '</tr>' +
            '<tr>' +
            '<td colspan="2">' +
            '<div class="ui_buttons"></div>' +
            '</td>' +
            '</tr>' +
            '</tbody>' +
            '</table>' +
            '</div>' +
            '</td>' +
            '<td class="ui_r"></td>' +
            '</tr>' +
            '<tr>' +
            '<td class="ui_lb"></td>' +
            '<td class="ui_b"></td>' +
            '<td class="ui_rb"></td>' +
            '</tr>' +
            '</tbody>' +
            '</table>',

    /*!
     * _path 获取组件核心文件lhgdialog.js所在的绝对路径
     * _args 获取lhgdialog.js文件后的url参数组，如：lhgdialog.js?self=true&skin=aero中的?后面的内容
     */
        _args, _path = (function (script, i, me) {
            return TPX.PATH_ASSERTS + '/lhgdialog/';
            /*
             var l = script.length;

             for( ; i < l; i++ )
             {
             me = !!document.querySelector ?
             script[i].src : script[i].getAttribute('src',4);

             if( me.substr(me.lastIndexOf('/')).indexOf('lhgdialog') !== -1 )
             break;
             }

             me = me.split('?'); _args = me[1];

             return me[0].substr( 0, me[0].lastIndexOf('/') + 1 );
             */
        })(document.getElementsByTagName('script'), 0),

    /*!
     * 获取url参数值函数
     * @param  {String}
     * @return {String||null}
     * @demo lhgdialog.js?skin=aero | _getArgs('skin') => 'aero'
     */
        _getArgs = function (name) {
            if (_args) {
                var p = _args.split('&'), i = 0, l = p.length, a;
                for (; i < l; i++) {
                    a = p[i].split('=');
                    if (name === a[0]) return a[1];
                }
            }
            return null;
        },

    /*! 取皮肤样式名，默认为 default */
        _skin = _getArgs('skin') || 'discuz',

    /*! 获取 lhgdialog 可跨级调用的最高层的 window 对象和 document 对象 */
        _doc, _top = (function (w) {
            try {
                _doc = w['top'].document;  // 跨域|无权限
                _doc.getElementsByTagName; // chrome 浏览器本地安全限制
            } catch (e) {
                _doc = w.document;
                return w;
            }
            ;

            // 如果指定参数self为true则不跨框架弹出，或为框架集则无法显示第三方元素
            if (_getArgs('self') === 'true' ||
                _doc.getElementsByTagName('frameset').length > 0) {
                _doc = w.document;
                return w;
            }

            return w['top'];
        })(window),

        _root = _doc.documentElement, _doctype = _doc.compatMode === 'BackCompat';

    _$doc = $(_doc), _$top = $(_top), _$html = $(_doc.getElementsByTagName('html')[0]);

    /*! 开启IE6 CSS背景图片缓存 */
    try {
        _doc.execCommand('BackgroundImageCache', false, true);
    } catch (e) {
    }
    ;

    /*! 在最顶层页面添加样式文件 */
    (function (style) {
        if (!style) {
            var head = _doc.getElementsByTagName('head')[0],
                link = _doc.createElement('link');

            link.href = _path + 'skins/' + _skin + '.css';
            link.rel = 'stylesheet';
            link.id = 'lhgdialoglink';
            head.insertBefore(link, head.firstChild);
        }
    })(_doc.getElementById('lhgdialoglink'));

    /*!
     * IE6下Fixed无抖动静止定位
     * 如果你的页面的html元素设定了背景图片请把设置背景图片的css写到body元素上
     * 如果你不需要组件静止定位（也就是随屏滚动）或此段代码影响了你的页面布局可将此段代码删除
     */
    _ie6 && (function (bg) {
        if (_$html.css(bg) !== 'fixed') {
            _$html.css({
                zoom: 1,// 避免偶尔出现body背景图片异常的情况
                backgroundImage: 'url(about:blank)',
                backgroundAttachment: 'fixed'
            });
        }
    })('backgroundAttachment');

    /*!----------------------------------以下为lhgdialog核心代码部分----------------------------------*/

    var lhgdialog = function (config) {
        config = config || {};

        var api, setting = lhgdialog.setting;

        // 合并默认配置
        for (var i in setting) {
            if (config[i] === undefined) config[i] = setting[i];
        }

        config.id = config.id || expando + _count;

        // 如果定义了id参数则返回存在此id的窗口对象
        api = lhgdialog.list[config.id];
        if (api) return api.zindex().focus();

        // 按钮队列
        config.button = config.button || [];

        config.ok &&
        config.button.push({
            id: 'ok',
            name: config.okVal,
            callback: config.ok,
            focus: config.focus
        });

        config.cancel &&
        config.button.push({
            id: 'cancel',
            name: config.cancelVal,
            callback: config.cancel
        });

        // zIndex全局配置
        lhgdialog.setting.zIndex = config.zIndex;

        _count++;

        return lhgdialog.list[config.id] = _singleton ?
            _singleton._init(config) : new lhgdialog.fn._init(config);
    };

    lhgdialog.fn = lhgdialog.prototype =
    {
        constructor: lhgdialog,

        _init: function (config) {
            var that = this, DOM,
                content = config.content,
                isIfr = _rurl.test(content);

            that.opener = window;
            that.config = config;

            that.DOM = DOM = that.DOM || that._getDOM();
            that.closed = false;
            that.data = config.data;

            // 假如提示性图标为真默认不显示最小化和最大化按钮
            if (config.icon && !isIfr) {
                config.min = false;
                config.max = false;

                DOM.icon[0].style.display = '';
                DOM.icon[0].innerHTML = '<img src="' + config.path + 'skins/icons/' + config.icon + '?20151124" class="ui_icon_bg"/>';
            }
            else
                DOM.icon[0].style.display = 'none';

            DOM.wrap.addClass(config.skin); // 多皮肤共存
            DOM.rb[0].style.cursor = config.resize ? 'se-resize' : 'auto';
            DOM.title[0].style.cursor = config.drag ? 'move' : 'auto';
            DOM.max[0].style.display = config.max ? 'inline-block' : 'none';
            DOM.min[0].style.display = config.min ? 'inline-block' : 'none';
            DOM.close[0].style.display = config.cancel === false ? 'none' : 'inline-block'; //当cancel参数为false时隐藏关闭按钮
            DOM.content[0].style.padding = config.padding;

            that.button.apply(that, config.button);

            that.title(config.title)
                .content(content, true, isIfr)
                .size(config.width, config.height)
                .position(config.left, config.top)
                .time(config.time)
                [config.show ? 'show' : 'hide'](true).zindex();

            config.focus && that.focus();
            config.lock && that.lock();
            that._ie6PngFix()._addEvent();

            _singleton = null;

            // 假如加载的是单独页面的内容页config.init函数会在内容页加载完成后执行，这里就不执行了
            if (!isIfr && config.init)
                config.init.call(that, window);

            return that;
        },

        /**
         * 自定义按钮
         * @example
         button({
			name: 'login',
			callback: function(){},
			disabled: false,
			focus: true
		}, .., ..)
         */
        button: function () {
            var that = this, DOM = that.DOM,
                buttons = DOM.buttons[0],
                focusButton = 'ui_state_highlight',
                listeners = that._listeners = that._listeners || {},
                ags = [].slice.call(arguments),
                i = 0, item, value, id, isNewButton, button;

            for (; i < ags.length; i++) {
                item = ags[i];

                value = item.name;
                id = item.id || value;
                isNewButton = !listeners[id];
                button = !isNewButton ? listeners[id].elem : _doc.createElement('input');

                button.type = 'button';

                if (!listeners[id])
                    listeners[id] = {};

                if (value)
                    button.value = value;

                if (item.callback)
                    listeners[id].callback = item.callback;

                if (item.focus) {
                    that._focus && that._focus.removeClass(focusButton);
                    that._focus = $(button).addClass(focusButton);
                    that.focus();
                }

                button[expando + 'callback'] = id;
                button.disabled = !!item.disabled;

                if (isNewButton) {
                    listeners[id].elem = button;
                    buttons.appendChild(button);
                }
            }

            buttons.style.display = ags.length ? '' : 'none';
            that._ie6SelectFix();

            return that;
        },

        /**
         * 设置标题
         * @param    {String, Boolean}    标题 容. 为false 隐藏标题栏
         * @return    {this}    如果无 数 返 对象本身
         */
        title: function (text) {
            if (text === undefined) return this;

            var DOM = this.DOM,
                border = DOM.border,
                title = DOM.title[0];

            if (text === false) {
                title.style.display = 'none';
                title.innerHTML = '';
                border.addClass('ui_state_tips');
            }
            else {
                title.style.display = '';
                title.innerHTML = text;
                border.removeClass('ui_state_tips');
            }
            ;

            return this;
        },

        /*!
         * 设置内容
         * @param	{String}	内容 (如果内容前3个字符为‘url:’就加载单独页面的内容页)
         * @param   {Boolean}   是否为后增加的内容
         * @param   {Boolean}   是否使用iframe方式加载内容页
         * @return	{this}		如果无参数则返回对象本身
         */
        content: function (msg, add, frm) {
            if (msg === undefined) return this;

            var that = this, DOM = that.DOM,
                wrap = DOM.wrap[0],
                width = wrap.offsetWidth,
                height = wrap.offsetHeight,
                left = parseInt(wrap.style.left),
                top = parseInt(wrap.style.top),
                cssWidth = wrap.style.width,
                $content = DOM.content,
                loading = lhgdialog.setting.content;

            // 假如内容中前3个字符为'url:'就加载相对路径的单独页面的内容页
            if (frm) {
                $content[0].innerHTML = loading;
                that._iframe(msg.split('url:')[1]);
            }
            else
                $content.html(msg);

            // 新增内容后调整位置
            if (!add) {
                width = wrap.offsetWidth - width;
                height = wrap.offsetHeight - height;
                left = left - width / 2;
                top = top - height / 2;
                wrap.style.left = Math.max(left, 0) + 'px';
                wrap.style.top = Math.max(top, 0) + 'px';

                if (cssWidth && cssWidth !== 'auto')
                    wrap.style.width = wrap.offsetWidth + 'px';

                that._autoPositionType();
            }

            that._ie6SelectFix();

            return that;
        },

        /**
         *    尺寸
         *    @param    {Number, String}    宽度
         *    @param    {Number, String}    高度
         */
        size: function (width, height) {
            var that = this, DOM = that.DOM,
                wrap = DOM.wrap[0],
                style = DOM.main[0].style;

            wrap.style.width = 'auto';

            if (typeof width === 'number')
                width = width + 'px';

            if (typeof height === 'number')
                height = height + 'px';

            style.width = width;
            style.height = height;

            if (width !== 'auto')  // 防止未定义宽度的表格遇到浏览器右边边界伸缩
                wrap.style.width = wrap.offsetWidth + 'px';

            that._ie6SelectFix();

            return that;
        },

        /**
         * 位置(相对于 视 域)
         * @param    {Number, String}
         * @param    {Number, String}
         */
        position: function (left, top) {
            var that = this,
                config = that.config,
                wrap = that.DOM.wrap[0],
                style = wrap.style,
                isFixed = _ie6 ? false : config.fixed,
                ie6Fixed = _ie6 && config.fixed,
                docLeft = _$top.scrollLeft(),
                docTop = _$top.scrollTop(),
                dl = isFixed ? 0 : docLeft,
                dt = isFixed ? 0 : docTop,
                ww = _$top.width(),
                wh = _$top.height(),
                ow = wrap.offsetWidth,
                oh = wrap.offsetHeight;

            if (left || left === 0) {
                that._left = left.toString().indexOf('%') !== -1 ? left : null;
                left = that._toNumber(left, ww - ow);

                if (typeof left === 'number') {
                    left = ie6Fixed ? (left += docLeft) : left + dl;
                    left = Math.max(left, dl) + 'px';
                }

                style.left = left;
            }

            if (top || top === 0) {
                that._top = top.toString().indexOf('%') !== -1 ? top : null;
                top = that._toNumber(top, wh - oh);

                if (typeof top === 'number') {
                    top = ie6Fixed ? (top += docTop) : top + dt;
                    top = Math.max(top, dt) + 'px';
                }

                style.top = top;
            }

            if (left !== undefined && top !== undefined)
                that._autoPositionType();

            return that;
        },

        /*!
         * 定时关闭
         * @param	{Number}	单位为秒, 无参数则停止计时器
         * @param   {Function}  关闭窗口前执行的回调函数
         */
        time: function (second, callback) {
            var that = this,
                timer = that._timer;

            timer && clearTimeout(timer);
            callback && callback.call(that);

            if (second) {
                that._timer = setTimeout(function () {
                    that._click('cancel');
                }, 1000 * second);
            }

            return that;
        },

        /*! 显示对话框 */
        show: function (args) {
            this.DOM.wrap[0].style.visibility = 'visible';
            this.DOM.border.addClass('ui_state_visible');

            if (!args && this._lock)
                $('#ldg_lockmask', _doc)[0].style.display = '';

            return this;
        },

        /*! 隐藏对话框 */
        hide: function (args) {
            this.DOM.wrap[0].style.visibility = 'hidden';
            this.DOM.border.removeClass('ui_state_visible');

            if (!args && this._lock)
                $('#ldg_lockmask', _doc)[0].style.display = 'none';

            return this;
        },

        /*! 置顶对话框 */
        zindex: function () {
            var that = this, DOM = that.DOM,
                load = that._load,
                top = lhgdialog.focus,
                index = lhgdialog.setting.zIndex++;

            // 设置叠加高度
            DOM.wrap[0].style.zIndex = index;

            // 设置最高层的样式
            top && top.DOM.border.removeClass('ui_state_focus');
            lhgdialog.focus = that;
            DOM.border.addClass('ui_state_focus');

            // 扩展窗口置顶功能，只用在iframe方式加载内容
            // 或跨域加载内容页时点窗口内容主体部分置顶窗口
            if (load && load.style.zIndex)
                load.style.display = 'none';
            if (top && top !== that && top.iframe)
                top._load.style.display = '';

            return that;
        },

        /*! 设置焦点 */
        focus: function () {
            try {
                elemFocus = this._focus && this._focus[0] || this.DOM.close[0];
                elemFocus && elemFocus.focus();
            } catch (e) {
            }
            ;

            return this;
        },

        /*! 锁屏 */
        lock: function () {
            var that = this, frm,
                index = lhgdialog.setting.zIndex - 1,
                config = that.config,
                mask = $('#ldg_lockmask', _doc)[0],
                style = mask ? mask.style : '',
                positionType = _ie6 ? 'absolute' : 'fixed';

            if (!mask) {
                frm = '<iframe src="javascript:\'\'" style="width:100%;height:100%;position:absolute;' +
                'top:0;left:0;z-index:-1;filter:alpha(opacity=0)"></iframe>';

                mask = _doc.createElement('div');
                mask.id = 'ldg_lockmask';
                mask.style.cssText = 'position:' + positionType + ';left:0;top:0;width:100%;height:100%;overflow:hidden;';

                style = mask.style;
                if (_ie6) mask.innerHTML = frm;

                _doc.body.appendChild(mask);
            }

            if (positionType === 'absolute') {
                style.width = _$top.width();
                style.height = _$top.height();
                style.top = _$top.scrollTop();
                style.left = _$top.scrollLeft();

                that._setFixed(mask);
            }

            style.zIndex = index;
            style.display = '';

            that.zindex();
            that.DOM.border.addClass('ui_state_lock');

            that._lock = true;

            return that;
        },

        /*! 解除锁屏 */
        unlock: function () {
            var that = this,
                config = that.config,
                mask = $('#ldg_lockmask', _doc)[0];

            if (mask && that._lock) {
                // 无限级锁屏
                if (config.parent && config.parent._lock) {
                    var index = config.parent.DOM.wrap[0].style.zIndex;
                    mask.style.zIndex = parseInt(index, 10) - 1;
                }
                else
                    mask.style.display = 'none';

                that.DOM.border.removeClass('ui_state_lock');
            }

            that._lock = false;

            return that;
        },

        /*! 关闭对话框 */
        close: function () {
            var that = this, DOM = that.DOM,
                wrap = DOM.wrap,
                list = lhgdialog.list,
                fn = that.config.close;

            that.time();

            // 当使用iframe方式加载内容页时的处理代码
            if (that.iframe) {
                if (typeof  fn === 'function' && fn.call(that, that.iframe.contentWindow, window) === false)
                    return that;

                // 重要！需要重置iframe地址，否则下次出现的对话框在IE6、7无法聚焦input
                // IE删除iframe后，iframe仍然会留在内存中出现上述问题，置换src是最容易解决的方法
                $(that.iframe).unbind('load', that._fmLoad).attr('src', "javascript:''").remove();

                DOM.content.removeClass('ui_state_full');
                if (that._frmTimer) clearTimeout(that._frmTimer);
            }
            else {
                if (typeof fn === 'function' && fn.call(that, window) === false)
                    return that;
            }

            that.unlock();

            if (that._maxState) {
                _$html.removeClass('ui_lock_scroll');
                DOM.res[0].style.display = 'none';
            }

            if (lhgdialog.focus === that) lhgdialog.focus = null;

            that._removeEvent();
            delete list[that.config.id];

            // 移除HTMLElement或重用
            if (_singleton)
                wrap.remove();
            else {
                _singleton = that;

                if (that._minState) {
                    DOM.main[0].style.display = '';
                    DOM.buttons[0].style.display = '';
                    DOM.dialog[0].style.width = '';
                }

                DOM.wrap[0].style.cssText = 'left:0;top:0;';
                DOM.wrap[0].className = '';
                DOM.border.removeClass('ui_state_focus');
                DOM.title[0].innerHTML = '';
                DOM.content.html('');
                DOM.icon[0].innerHTML = '';
                DOM.buttons[0].innerHTML = '';

                that.hide(true)._setAbsolute();

                // 清空除this.DOM之外临时对象，恢复到初始状态，以便使用单例模式
                for (var i in that) {
                    if (that.hasOwnProperty(i) && i !== 'DOM') delete that[i];
                }
                ;
            }

            that.closed = true;
            return that;
        },

        /*! 最大化窗口 */
        max: function () {
            var that = this, maxSize,
                DOM = that.DOM,
                wrapStyle = DOM.wrap[0].style,
                mainStyle = DOM.main[0].style,
                rbStyle = DOM.rb[0].style,
                titleStyle = DOM.title[0].style,
                config = that.config,
                top = _$top.scrollTop(),
                left = _$top.scrollLeft();

            if (!that._maxState) {

                _$html.addClass('ui_lock_scroll');

                if (that._minState)
                    that.min();

                // 存储最大化窗口前的状态
                that._or = {
                    t: wrapStyle.top,
                    l: wrapStyle.left,
                    w: mainStyle.width,
                    h: mainStyle.height,
                    d: config.drag,
                    r: config.resize,
                    rc: rbStyle.cursor,
                    tc: titleStyle.cursor
                };

                wrapStyle.top = top + 'px';
                wrapStyle.left = left + 'px';

                maxSize = that._maxSize();
                that.size(maxSize.w, maxSize.h)._setAbsolute();

                if (_ie6 && _doctype)
                    wrapStyle.width = _$top.width() + 'px';

                config.drag = false;
                config.resize = false;
                rbStyle.cursor = 'auto';
                titleStyle.cursor = 'auto';

                DOM.max[0].style.display = 'none';
                DOM.res[0].style.display = 'inline-block';

                that._maxState = true;
            }
            else {
                _$html.removeClass('ui_lock_scroll');

                wrapStyle.top = that._or.t;
                wrapStyle.left = that._or.l;
                that.size(that._or.w, that._or.h)._autoPositionType();
                config.drag = that._or.d;
                config.resize = that._or.r;
                rbStyle.cursor = that._or.rc;
                titleStyle.cursor = that._or.tc;

                DOM.res[0].style.display = 'none';
                DOM.max[0].style.display = 'inline-block';

                delete that._or;

                that._maxState = false;
            }

            return that;
        },

        /*! 最小化窗口 */
        min: function () {
            var that = this,
                DOM = that.DOM,
                main = DOM.main[0].style,
                buttons = DOM.buttons[0].style,
                dialog = DOM.dialog[0].style,
                rb = DOM.rb[0].style.cursor,
                resize = that.config.resize;

            if (!that._minState) {
                if (that._maxState)
                    that.max();

                that._minRz = {rzs: resize, btn: buttons.display};
                main.display = 'none';
                buttons.display = 'none';
                dialog.width = main.width;
                rb.cursor = 'auto';
                resize = false;

                that._minState = true;
            }
            else {
                main.display = '';
                buttons.display = that._minRz.btn;
                dialog.width = '';
                resize = that._minRz;
                rb.cursor = that._minRz.rzs ? 'se-resize' : 'auto';

                delete that._minRz;

                that._minState = false;
            }

            that._ie6SelectFix();

            return that;
        },

        /*!
         * 获取指定id的窗口对象或窗口中iframe加载的内容页的window对象
         * @param {String} 指定的id
         * @param {String} 是否返回的为指定id的窗口对象
         *        用数字1来表示真，如果不写或写其它为false
         * @return {Object|null}
         */
        get: function (id, object) {
            if (lhgdialog.list[id]) {
                if (object === 1)
                    return lhgdialog.list[id];
                else
                    return lhgdialog.list[id].content || null;
            }

            return null;
        },

        /**
         *  新或跳转指定页面
         * @param    {Object, 指定页面的window对象}
         * @param    {String, 要跳转到的页面地址}
         */
        reload: function (win, url, callback) {
            win = win || window;

            try {
                win.location.href = url ? url : win.location.href;
            }
            catch (e) { // 跨域
                url = this.iframe.src;
                $(this.iframe).attr('src', url);
            }
            ;

            callback && callback.call(this);

            return this;
        },

        /*!
         * 设置iframe方式加载内容页
         */
        _iframe: function (url) {
            var that = this, iframe, $iframe, iwin, $idoc, $ibody, iWidth, iHeight,
                $content = that.DOM.content,
                config = that.config,
                loading = that._load = $('.ui_loading', $content[0])[0],
                initCss = 'position:absolute;left:-9999em;border:none 0;background:transparent',
                loadCss = 'width:100%;height:100%;border:none 0;';

            // 是否允许缓存. 默认true
            if (config.cache === false) {
                var ts = (new Date).getTime(),
                    ret = url.replace(/([?&])_=[^&]*/, '$1_=' + ts);
                url = ret + ((ret === url) ? (/\?/.test(url) ? '&' : '?') + '_=' + ts : '');
            }

            iframe = that.iframe = _doc.createElement('iframe');
            iframe.name = config.id;
            iframe.style.cssText = initCss;
            iframe.setAttribute('frameborder', 0, 0);

            $iframe = $(iframe);
            $content[0].appendChild(iframe);

            // 延迟加载iframe的src属性，IE6下不延迟加载会出现加载进度条的BUG
            that._frmTimer = setTimeout(function () {
                $iframe.attr('src', url);
            }, 1);

            // iframe中页面加载完成后执行的函数
            var load = that._fmLoad = function () {
                $content.addClass('ui_state_full');

                // 增强窗口置顶功能，iframe方式加载内容或跨域加载内容页时点窗口内容部分置顶窗口
                // 通过使用重置loading层来优雅的完成此功能，在focus方法中有此功能的相关代码
                var DOM = that.DOM, ltSize,
                    lt = DOM.lt[0].offsetHeight,
                    main = DOM.main[0].style;

                loading.style.cssText = 'display:none;position:absolute;background:#FFF;opacity:0;' +
                'filter:alpha(opacity=0);z-index:1;width:' + main.width + ';height:' + main.height + ';';
                // 此部分代码结束，在拖动改变大小的_dragEvent.onmove方法中还有此功能的相关代码

                try {
                    iwin = that.content = iframe.contentWindow; // 定义窗口对象content属性为内容页的window对象
                    $idoc = $(iwin.document);
                    $ibody = $(iwin.document.body);
                } catch (e) {// 跨域
                    iframe.style.cssText = loadCss;
                    return;
                }
                // 获取iframe内部尺寸
                iWidth = config.width === 'auto'
                    ? $idoc.width() + (_ie6 ? 0 : parseInt($ibody.css('marginLeft')))
                    : config.width;

                iHeight = config.height === 'auto'
                    ? $idoc.height() : config.height;

                // 适应iframe尺寸
                setTimeout(function () {
                    iframe.style.cssText = loadCss;
                }, 0);// setTimeout: 防止IE6~7对话框样式渲染异常

                // 窗口最大化时这里不用再计算窗口的尺寸和位置了，如果再计算窗口会出现错位
                if (!that._maxState) {
                    that.size(iWidth, iHeight)
                        .position(config.left, config.top);
                }

                // 非跨域时还要对loading层重设大小，要不宽和度都为'auto'
                loading.style.width = main.width;
                loading.style.height = main.height;

                config.init && config.init.call(that, iwin, _top);
            };

            // 绑定iframe元素api属性为窗口自身对象，在内容页中此属性很重要
            that.iframe.api = that;
            $iframe.bind('load', load);
        },

        /*! 获取窗口元素 */
        _getDOM: function () {
            var wrap = _doc.createElement('div'),
                body = _doc.body;

            wrap.style.cssText = 'position:absolute;left:0;top:0;visibility:hidden;';
            wrap.innerHTML = dialogTpl;

            var name, i = 0,
                DOM = {wrap: $(wrap)},
                els = wrap.getElementsByTagName('*'),
                len = els.length;

            for (; i < len; i++) {
                name = els[i].className.split('ui_')[1];
                if (name) DOM[name] = $(els[i]);
            }
            ;

            body.insertBefore(wrap, body.firstChild);

            return DOM;
        },

        /*!
         * px与%单位转换成数值 (百分比单位按照最大值换算)
         * 其他的单位返回原值
         */
        _toNumber: function (thisValue, maxValue) {
            if (typeof thisValue === 'number')
                return thisValue;

            if (thisValue.indexOf('%') !== -1)
                thisValue = parseInt(maxValue * thisValue.split('%')[0] / 100);

            return thisValue;
        },

        /*! 计算最大化窗口时窗口的尺寸 */
        _maxSize: function () {
            var that = this, DOM = that.DOM,
                wrap = DOM.wrap[0],
                main = DOM.main[0],
                maxWidth, maxHeight;

            maxWidth = _$top.width() - wrap.offsetWidth + main.offsetWidth;
            maxHeight = _$top.height() - wrap.offsetHeight + main.offsetHeight;

            return {w: maxWidth, h: maxHeight};
        },

        /*! 让IE6 CSS支持PNG背景 */
        _ie6PngFix: function () {
            if (_ie6) {
                var i = 0, elem, png, pngPath, runtimeStyle,
                    path = lhgdialog.setting.path + '/skins/',
                    list = this.DOM.wrap[0].getElementsByTagName('*');

                for (; i < list.length; i++) {
                    elem = list[i];
                    png = elem.currentStyle['png'];
                    if (png) {
                        pngPath = path + png;
                        runtimeStyle = elem.runtimeStyle;
                        runtimeStyle.backgroundImage = 'none';
                        runtimeStyle.filter = "progid:DXImageTransform.Microsoft." +
                        "AlphaImageLoader(src='" + pngPath + '?20151124' + sizingMethod + "','scale')";
                    }
                    ;
                }
            }

            return this;
        },

        /*! 强制覆盖IE6下拉控件 */
        _ie6SelectFix: _ie6 ? function () {
            var $wrap = this.DOM.wrap,
                wrap = $wrap[0],
                expando = expando + 'iframeMask',
                iframe = $wrap[expando],
                width = wrap.offsetWidth,
                height = wrap.offsetHeight;

            width = width + 'px';
            height = height + 'px';
            if (iframe) {
                iframe.style.width = width;
                iframe.style.height = height;
            } else {
                iframe = wrap.appendChild(_doc.createElement('iframe'));
                $wrap[expando] = iframe;
                iframe.src = "javascript:''";
                iframe.style.cssText = 'position:absolute;z-index:-1;left:0;top:0;'
                + 'filter:alpha(opacity=0);width:' + width + ';height:' + height;
            }
        } : _fn,

        /*! 自动切换定位类型 */
        _autoPositionType: function () {
            this[this.config.fixed ? '_setFixed' : '_setAbsolute']();
        },

        /*! 设置静止定位 */
        _setFixed: function (el) {
            var style = el ? el.style : this.DOM.wrap[0].style;

            if (_ie6) {
                var sLeft = _$top.scrollLeft(),
                    sTop = _$top.scrollTop(),
                    left = parseInt(style.left) - sLeft,
                    top = parseInt(style.top) - sTop,
                    txt = _doctype ? 'this.ownerDocument.body' :
                        'this.ownerDocument.documentElement';

                this._setAbsolute();

                style.setExpression('left', txt + '.scrollLeft +' + left);
                style.setExpression('top', txt + '.scrollTop +' + top);
            }
            else
                style.position = 'fixed';
        },

        /*! 设置绝对定位 */
        _setAbsolute: function () {
            var style = this.DOM.wrap[0].style;

            if (_ie6) {
                style.removeExpression('left');
                style.removeExpression('top');
            }

            style.position = 'absolute';
        },

        /*! 按钮回调函数触发 */
        _click: function (name) {
            var that = this,
                fn = that._listeners[name] && that._listeners[name].callback;
            return typeof fn !== 'function' || fn.call(that, window) !== false ?
                that.close() : that;
        },

        /*! 重置位置与尺寸 */
        _reset: function () {
            var test = !!window.ActiveXObject,
                newSize,
                that = this,
                tw = _$top.width(),
                tt = _$top.height(),
                oldSize = that._winSize || tw * tt,
                oldWidth = that._lockDocW || tw,
                left = that._left,
                top = that._top;

            if (test) {
                //IE6下遮罩大小改变
                if (that._lock && _ie6)
                    $('#ldg_lockmask', _doc).css({width: tw + 'px', height: tt + 17 + 'px'});

                newWidth = that._lockDocW = tw;
                //IE6~7 window.onresize bug
                newSize = that._winSize = tw * tt;
                if (oldSize === newSize) return;
            }
            ;

            if (that._maxState) {
                var size = that._maxSize();
                that.size(size.w, size.h);
            }

            //IE6~8会出现最大化还原后窗口重新定位，锁定滚动条在IE下就会触发resize事件BUG
            if (test && Math.abs(oldWidth - newWidth) === 17) return;

            if (left || top)
                that.position(left, top);
        },

        _addEvent: function () {
            var resizeTimer,
                that = this,
                config = that.config,
                DOM = that.DOM;

            // 窗口调节事件
            that._winResize = function () {
                resizeTimer && clearTimeout(resizeTimer);
                resizeTimer = setTimeout(function () {
                    that._reset();
                }, 140);
            };
            _$top.bind('resize', that._winResize);

            // 监听点击
            DOM.wrap.bind('click', function (event) {
                var target = event.target, callbackID;

                if (target.disabled) return false; // IE BUG

                if (target === DOM.close[0]) {
                    that._click('cancel');
                    return false;
                }
                else if (target === DOM.max[0] || target === DOM.res[0] || target === DOM.max_b[0]
                    || target === DOM.res_b[0] || target === DOM.res_t[0]) {
                    that.max();
                    return false;
                }
                else if (target === DOM.min[0] || target === DOM.min_b[0]) {
                    that.min();
                    return false;
                }
                else {
                    callbackID = target[expando + 'callback'];
                    callbackID && that._click(callbackID);
                }
            }).bind('mousedown', function (event) {
                that.zindex();

                var target = event.target;

                if (config.drag !== false && target === DOM.title[0]
                    || config.resize !== false && target === DOM.rb[0]) {
                    _use(event);
                    return false;
                }
            });

            // 双击标题栏最大化还窗口事件
            if (config.max)
                DOM.title.bind('dblclick', function () {
                    that.max();
                    return false;
                });
        },

        /*!  卸载事件代理 */
        _removeEvent: function () {
            var that = this,
                DOM = that.DOM;

            DOM.wrap.unbind();
            DOM.title.unbind();
            _$top.unbind('resize', that._winResize);
        }
    };

    lhgdialog.fn._init.prototype = lhgdialog.fn;

    /*! 此对象用来存储获得焦点的窗口对象实例 */
    lhgdialog.focus = null;

    /*! 存储窗口实例的对象列表 */
    lhgdialog.list = {};

    /*!
     * 全局快捷键
     * 由于跨框架时事件是绑定到最顶层页面，所以当当前页面卸载时必须要除移此事件
     * 所以必须unbind此事件绑定的函数，所以这里要给绑定的事件定义个函数
     * 这样在当前页面卸载时就可以移此事件绑定的相应函数，不而不影响顶层页面此事件绑定的其它函数
     */
    onKeyDown = function (event) {
        var target = event.target,
            api = lhgdialog.focus,
            keyCode = event.keyCode;

        if (!api || !api.config.esc || api.config.cancel === false) return;

        keyCode === 27 && api._click(api.config.cancelVal);
    };

    _$doc.bind('keydown', onKeyDown);

    /*!
     * 框架页面卸载前关闭所有穿越的对话框
     * 同时移除拖动层和遮罩层
     */
    _top != window && $(window).bind('unload', function () {
        var list = lhgdialog.list;
        for (var i in list) {
            if (list[i])
                list[i].close();
        }
        _singleton && _singleton.DOM.wrap.remove();

        _$doc.unbind('keydown', onKeyDown);

        $('#ldg_lockmask', _doc)[0] && $('#ldg_lockmask', _doc).remove();
        $('#ldg_dragmask', _doc)[0] && $('#ldg_dragmask', _doc).remove();
    });

    /*! lhgdialog 的全局默认配置 */
    lhgdialog.setting =
    {
        content: '<div class="ui_loading"><span>loading...</span></div>',
        title: '\u89C6\u7A97 ',     // 标题,默认'视窗'
        button: null,	     		// 自定义按钮
        ok: null,					// 确定按钮回调函数
        cancel: null,				// 取消按钮回调函数
        init: null,					// 对话框初始化后执行的函数
        close: null,				// 对话框关闭前执行的函数
        okVal: '\u786E\u5B9A',		// 确定按钮文本,默认'确定'
        cancelVal: '\u53D6\u6D88',	// 取消按钮文本,默认'取消'
        skin: '',					// 多皮肤共存预留接口
        esc: true,					// 是否支持Esc键关闭
        show: true,					// 初始化后是否显示对话框
        width: 'auto',				// 内容宽度
        height: 'auto',				// 内容高度
        icon: null,					// 消息图标名称
        path: _path,                // lhgdialog路径
        lock: false,				// 是否锁屏
        focus: true,                // 窗口是否自动获取焦点
        parent: null,               // 打开子窗口的父窗口对象，主要用于多层锁屏窗口
        padding: '10px',		    // 内容与边界填充距离
        fixed: false,				// 是否静止定位
        left: '50%',				// X轴坐标
        top: '38.2%',				// Y轴坐标
        max: true,                  // 是否显示最大化按钮
        min: true,                  // 是否显示最小化按钮
        zIndex: 1976,				// 对话框叠加高度值(重要：此值不能超过浏览器最大限制)
        resize: true,				// 是否允许用户调节尺寸
        drag: true, 				// 是否允许用户拖动位置
        cache: true,                // 是否缓存窗口内容页
        data: null,                 // 传递各种数据
        extendDrag: false           // 增加lhgdialog拖拽体验
    };

    /*!
     *------------------------------------------------
     * 对话框模块-拖拽支持（可选外置模块）
     *------------------------------------------------
     */
    var _use, _isSetCapture = 'setCapture' in _root,
        _isLosecapture = 'onlosecapture' in _root;

    lhgdialog.dragEvent =
    {
        onstart: _fn,
        start: function (event) {
            var that = lhgdialog.dragEvent;

            _$doc
                .bind('mousemove', that.move)
                .bind('mouseup', that.end);

            that._sClientX = event.clientX;
            that._sClientY = event.clientY;
            that.onstart(event.clientX, event.clientY);

            return false;
        },

        onmove: _fn,
        move: function (event) {
            var that = lhgdialog.dragEvent;

            that.onmove(
                event.clientX - that._sClientX,
                event.clientY - that._sClientY
            );

            return false;
        },

        onend: _fn,
        end: function (event) {
            var that = lhgdialog.dragEvent;

            _$doc
                .unbind('mousemove', that.move)
                .unbind('mouseup', that.end);

            that.onend(event.clientX, event.clientY);
            return false;
        }
    };

    _use = function (event) {
        var limit, startWidth, startHeight, startLeft, startTop, isResize,
            api = lhgdialog.focus,
            config = api.config,
            DOM = api.DOM,
            wrap = DOM.wrap[0],
            title = DOM.title,
            main = DOM.main[0],
            _dragEvent = lhgdialog.dragEvent,

        // 清除文本选择
            clsSelect = 'getSelection' in _top ?
                function () {
                    _top.getSelection().removeAllRanges();
                } : function () {
                try {
                    _doc.selection.empty();
                } catch (e) {
                }
                ;
            };

        // 对话框准备拖动
        _dragEvent.onstart = function (x, y) {
            if (isResize) {
                startWidth = main.offsetWidth;
                startHeight = main.offsetHeight;
            }
            else {
                startLeft = wrap.offsetLeft;
                startTop = wrap.offsetTop;
            }
            ;

            _$doc.bind('dblclick', _dragEvent.end);

            !_ie6 && _isLosecapture
                ? title.bind('losecapture', _dragEvent.end)
                : _$top.bind('blur', _dragEvent.end);

            _isSetCapture && title[0].setCapture();

            DOM.border.addClass('ui_state_drag');
            api.focus();
        };

        // 对话框拖动进行中
        _dragEvent.onmove = function (x, y) {
            if (isResize) {
                var wrapStyle = wrap.style,
                    style = main.style,
                    width = x + startWidth,
                    height = y + startHeight;

                wrapStyle.width = 'auto';
                config.width = style.width = Math.max(0, width) + 'px';
                wrapStyle.width = wrap.offsetWidth + 'px';

                config.height = style.height = Math.max(0, height) + 'px';
                //api._ie6SelectFix();
                // 使用loading层置顶窗口时窗口大小改变相应loading层大小也得改变
                api._load && $(api._load).css({width: style.width, height: style.height});
            }
            else {
                var style = wrap.style,
                    left = x + startLeft,
                    top = y + startTop;

                config.left = Math.max(limit.minX, Math.min(limit.maxX, left));
                config.top = Math.max(limit.minY, Math.min(limit.maxY, top));
                style.left = config.left + 'px';
                style.top = config.top + 'px';
            }

            clsSelect();
        };

        // 对话框拖动结束
        _dragEvent.onend = function (x, y) {
            _$doc.unbind('dblclick', _dragEvent.end);

            !_ie6 && _isLosecapture
                ? title.unbind('losecapture', _dragEvent.end)
                : _$top.unbind('blur', _dragEvent.end);

            _isSetCapture && title[0].releaseCapture();

            _ie6 && api._autoPositionType();

            DOM.border.removeClass('ui_state_drag');
        };

        isResize = event.target === DOM.rb[0] ? true : false;

        limit = (function (fixed) {
            var ow = wrap.offsetWidth,
            // 向下拖动时不能将标题栏拖出可视区域
                oh = title[0].offsetHeight || 20,
                ww = _$top.width(),
                wh = _$top.height(),
                dl = fixed ? 0 : _$top.scrollLeft(),
                dt = fixed ? 0 : _$top.scrollTop();
            // 坐标最大值限制(在可视区域内)
            maxX = ww - ow + dl;
            maxY = wh - oh + dt;

            return {
                minX: dl,
                minY: dt,
                maxX: maxX,
                maxY: maxY
            };
        })(wrap.style.position === 'fixed');

        _dragEvent.start(event);
    };

    /*!
     * 页面DOM加载完成执行的代码
     */
    $(function () {
        // 触发浏览器预先缓存背景图片
        setTimeout(function () {
            if (_count) return;
            lhgdialog({left: '-9999em', time: 9, fixed: false, lock: false, focus: false});
        }, 150);

        // 增强lhgdialog拖拽体验（可选外置模块，如不需要可删除）
        // 防止鼠标落入iframe导致不流畅，对超大对话框拖动优化
        lhgdialog.setting.extendDrag &&
        (function (dragEvent) {
            var mask = _doc.createElement('div'),
                style = mask.style,
                positionType = _ie6 ? 'absolute' : 'fixed';
            mask.id = 'ldg_dragmask';

            style.cssText = 'display:none;position:' + positionType + ';left:0;top:0;width:100%;height:100%;'
            + 'cursor:move;filter:alpha(opacity=0);opacity:0;background:#FFF;pointer-events:none;';

            _doc.body.appendChild(mask);

            dragEvent._start = dragEvent.start;
            dragEvent._end = dragEvent.end;

            dragEvent.start = function () {
                var api = lhgdialog.focus,
                    main = api.DOM.main[0],
                    iframe = api.iframe;

                dragEvent._start.apply(this, arguments);
                style.display = 'block';
                style.zIndex = lhgdialog.setting.zIndex + 3;

                if (positionType === 'absolute') {
                    style.width = _$top.width() + 'px';
                    style.height = _$top.height() + 'px';
                    style.left = _$doc.scrollLeft() + 'px';
                    style.top = _$doc.scrollTop() + 'px';
                }
                ;

                if (iframe && main.offsetWidth * main.offsetHeight > 307200)
                    main.style.visibility = 'hidden';
            };

            dragEvent.end = function () {
                var api = lhgdialog.focus;
                dragEvent._end.apply(this, arguments);
                style.display = 'none';
                if (api) api.DOM.main[0].style.visibility = 'visible';
            };
        })(lhgdialog.dragEvent);
    });

    /*! 使用jQ方式调用窗口 */
    $.fn.dialog = function () {
        var config = arguments;
        this.bind('click', function () {
            lhgdialog.apply(this, config);
            return false;
        });
        return this;
    };

    window.lhgdialog = $.dialog = lhgdialog;

})(this.jQuery || this.lhgcore, this);

/*!
 *------------------------------------------------
 * 对话框其它功能扩展模块（可选外置模块）
 *------------------------------------------------
 */
;
(function ($, lhgdialog, undefined) {

    var _zIndex = function () {
        return lhgdialog.setting.zIndex;
    };

    /**
     * 警
     * @param    {String}    消息 容
     */
    lhgdialog.alert = function (content, callback, parent) {
        return lhgdialog({
            title: '消息',
            id: 'Alert',
            zIndex: _zIndex(),
            //icon: 'alert.gif',
            fixed: true,
            lock: true,
            content: '<div style="min-width:150px;padding:15px;">' + content + '</div>',
            ok: true,
            resize: false,
            close: callback,
            min: false,
            max: false,
            parent: parent || null,
            init: function () {
                var btnCount = this.config.button.length;
                $(this.DOM.buttons).find('input').css('width', (100 / btnCount) + '%');
            }
        });
    };

    /**
     * 确认
     * @param    {String}    消息 容
     * @param    {Function}    确定按钮 调 数
     * @param    {Function}     消按钮 调 数
     */
    lhgdialog.confirm = function (content, yes, no, parent) {
        return lhgdialog({
            title: '提示',
            id: 'Confirm',
            zIndex: _zIndex(),
            //icon: 'confirm.gif',
            fixed: true,
            lock: true,
            content: '<div style="min-width:150px;padding:15px;">' + content + '</div>',
            resize: false,
            parent: parent || null,
            min: false,
            max: false,
            ok: function (here) {
                return yes.call(this, here);
            },
            cancel: function (here) {
                return no && no.call(this, here);
            },
            init: function () {
                var btnCount = this.config.button.length;
                $(this.DOM.buttons).find('input').css('width', (100 / btnCount) + '%');
            }
        });
    };

    /**
     * 提问
     * @param    {String}    提问 容
     * @param    {Function}     调 数. 接收 数：输
     * @param    {String}    默认
     */
    lhgdialog.prompt = function (content, yes, value, parent) {
        value = value || '';
        var input;

        return lhgdialog({
            title: 'Prompt',
            id: 'Prompt',
            zIndex: _zIndex(),
            icon: 'prompt.gif',
            fixed: true,
            lock: true,
            parent: parent || null,
            content: [
                '<div style="margin-bottom:5px;font-size:12px">',
                content,
                '</div>',
                '<div>',
                '<input value="',
                value,
                '" style="width:18em;padding:6px 4px" />',
                '</div>'
            ].join(''),
            init: function () {
                input = this.DOM.content[0].getElementsByTagName('input')[0];
                input.select();
                input.focus();
            },
            ok: function (here) {
                return yes && yes.call(this, input.value, here);
            },
            cancel: true
        });
    };

    /**
     * 短暂提示
     * @param    {String}    提示 容
     * @param   {Number}    显示时间 (默认1.5秒)
     * @param    {String}    提示 标 (注意要 扩展 )
     */
    lhgdialog.tips = function (content, time, icon) {
        return lhgdialog({
            id: 'Tips',
            zIndex: _zIndex(),
            icon: icon,
            title: false,
            cancel: false,
            fixed: true,
            lock: true,
            resize: false,
            content: '<div style="padding:10px;text-align:center;">' + content + '</div>'
        }).time(time || 1.5);
    };

    lhgdialog.errorTips = function (msg) {
        return lhgdialog.tips(msg, 1, 'error.gif');
    };

    lhgdialog.successTips = function (msg) {
        return lhgdialog.tips(msg, 1, 'success.gif');
    };

    lhgdialog.loadingOn = function (timeout) {
        timeout = timeout || 60;
        var loading = lhgdialog.tips(lhgdialog_lang.LOADING, timeout + 10, 'loading.gif');
        var timer = setTimeout(function () {
            if (loading) {
                loading.close();
                loading = null;
                lhgdialog.alert(lhgdialog_lang.TIMEOUT);
            }
        }, timeout * 1000);
        return {
            dialog: loading,
            timer: timer
        };
    };

    lhgdialog.loadingOff = function (loadingContext) {
        loadingContext.dialog.close();
        clearTimeout(loadingContext.timer);
    };

})(this.jQuery || this.lhgcore, this.lhgdialog);